Recent content by Kchu

  1. K

    How Does String Tension Vary with Position in Vertical Circular Motion?

    A ball of mass m is attached to a string of length . It is being swung in a vertical circle with enough speed so that the string remains taut throughout the ball's motion. Assume that the ball travels freely in this vertical circle with negligible loss of total mechanical energy. To avoid...
  2. K

    Is This a Conservation of Angular Momentum Problem?

    mrv=mrv but it doesn't rotate?
  3. K

    Is This a Conservation of Angular Momentum Problem?

    oops! =] **Two people are standing on a very light board that is balanced on a fulcrum. The lighter person suddenly jumps straight up at 1.5m/s Just after he jumps, how fast will the heavier person be moving?**
  4. K

    Is This a Conservation of Angular Momentum Problem?

    i don't know how to solve this problem is it a conservation of momentum problem? because can't you just use mv=mv?
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